Abstract: A multiple wavelength laser is tunable in output beam frequency, number of output channels, spacing and power. The multiple wavelength laser system is made of two coupled stages of laser amplifiers, where the first stage comprises a series of optical gain mediums pumped with small power to operate near or above laser threshold, for stable operation. The second stage boosts the output of the first stage to high powers. As the optical gain mediums in the first stage are isolated by a de-multiplexing filter the can be separately powered, attenuated or otherwise modulated to provide an agile wavelength provisioning function, effective use of the pump power and direct-modulated laser signals.

Abstract: An optical interconnection device has a passive control mechanism for substantially eliminating thermal effects on optical properties of the apparatus Specifically, the interconnection apparatus includes a control material coupled to an optical circuit substrate, wherein the control material has a thermal expansion coefficient that is different than a substrate thermal expansion coefficient. In response to an increase or decrease an ambient temperature, the control material thermally expands or contracts at a different rate than the substrate to create a non-planar substrate distortion transmitted to the core portion, thereby creating a temperature independent optical path length within the optical core portion.